Re: 3 dB bandwidth

Guy Macon wrote...
>
>Adrian Tuddenham wrote:
>>
>>Guy Macon <_see.web.page_@xxxxxxxxxxxxxxxxxx> wrote:
>>
>>> The formula for calculating power decibels is:
>>>
>>> Po
>>> G = 10 log10 ----
>>> Pi
>>>
>>> Where
>>> G = Gain in dB
>>> Po = Power output from the device
>>> Pi = Power input to the device
>>
>>That is the formula for calculating decibels, decibels are defined with
>>respect to power.
>>
>>
>>> The formula for calculating voltage decibels is:
>>[...]
>>
>>There is no such thing as a 'voltage decibel' so please avoid using
>>the expression, it can only lead to confusion and sloppy thinking.
>
>I agree 100%. I was trying to accomodate the existing sloppy
>thinking of certain ignorant induhviduals, but I see now that doing
>so was a mistake; they just run in cyircles shouting "0.5 is -6dB!
>0.5 is -6dB!" and flaming anyone who tries to educate them.
>
>Thank you for the excellent advice.

-6dB was and is the correct answer, you were, are and continue
to be plain wrong. Read it and weep, sorry.


--
Thanks,
- Win
.

Relevant Pages

  • Re: 3 dB bandwidth
    ... >>That is the formula for calculating decibels, ... >>respect to power. ... it can only lead to confusion and sloppy thinking. ...
    (sci.electronics.design)
  • Re: What a Parrot Brained Fuckwit
    ... "Adrian Tuddenham" ... > ...and as for the assertion that there are different kinds of decibels ... > nowadays (which looks to me like a smokescreen to cover the poster's ...
    (rec.audio.pro)